Article

A meta-analysis on the influence of Inflammatory Bowel Disease on pregnancy

Department of Biosurgery and Surgical Technology, St Mary's Hospital, Imperial College, 10th Floor QEQM Wing, Praed Street, London W2 1NY, UK.
Gut (Impact Factor: 13.32). 06/2007; 56(6):830-7. DOI: 10.1136/gut.2006.108324
Source: PubMed

ABSTRACT Inflammatory bowel disease (IBD) has a typical onset during the peak reproductive years. Evidence of the risk of adverse pregnancy outcomes in IBD is important for the management of pregnancy to assist in its management.
To provide a clear assessment of risk of adverse outcomes during pregnancy in women with IBD.
The Medline literature was searched to identify studies reporting outcomes of pregnancy in patients with IBD. Random-effect meta-analysis was used to compare outcomes between women with IBD and normal controls. Patients and
A total of 3907 patients with IBD (Crohn's disease 1952 (63%), ulcerative colitis 1113 (36%)) and 320 531 controls were reported in 12 studies that satisfied the inclusion criteria.
For women with IBD, there was a 1.87-fold increase in incidence of prematurity (<37 weeks gestation; 95% CI 1.52 to 2.31; p<0.001) compared with controls. The incidence of low birth weight (<2500 g) was over twice that of normal controls (95% CI 1.38 to 3.19; p<0.001). Women with IBD were 1.5 times more likely to undergo caesarean section (95% CI 1.26 to 1.79; p<0.001), and the risk of congenital abnormalities was found to be 2.37-fold increased (95% CI 1.47 to 3.82; p<0.001).
The study has shown a higher incidence of adverse pregnancy outcomes in patients with IBD. Further studies are required to clarify which women are at higher risk, as this was not determined in the present study. This has an effect on the management of patients with IBD during pregnancy, who should be treated as a potentially high-risk group.

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    • "In a meta-analysis in 2007, a pregnant woman with IBD was 1.5 times more likely to undergo c section (95% CI 1.26-1.79; p<0.001) (Cornish et al, 2007). Some surgeons advise elective caesarean section to avoid risk of anal sphincter damage. "
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